getcfg

getcfg — Return Csound settings.

Description

Return various configuration settings in Svalue as a string at init time.

Syntax

Svalue getcfg iopt

Initialization

iopt -- The parameter to be returned, can be one of:

  • 1: the maximum length of string variables in characters; this is at least the value of the -+max_str_len command line option - 1

  • 2: the input sound file name (-i), or empty if there is no input file

  • 3: the output sound file name (-o), or empty if there is no output file

  • 4: return "1" if real time audio input or output is being used, and "0" otherwise

  • 5: return "1" if running in beat mode (-t command line option), and "0" otherwise

  • 6: the host operating system name

  • 7: return "1" if a callback function for the chnrecv and chnsend opcodes has been set, and "0" otherwise (which means these opcodes do nothing)

Examples

Here is an example of the getcfg opcode. It uses the file getcfg.csd.

Example 342. Example of the getcfg opcode.

See the sections Real-time Audio and Command Line Flags for more information on using command line flags.

<CsoundSynthesizer>
<CsOptions>
 
; Select audio/midi flags here according to platform
-odac     ;;;realtime audio out
-iadc    ;;;uncomment -iadc if realtime audio input is needed too
</CsOptions>
<CsInstruments>
 

sr = 44100
ksmps = 32
nchnls = 2
0dbfs  = 1

instr 1

S1 getcfg 1	; -+max_str_len 
S2 getcfg 2	; -i 
S3 getcfg 3	; -o 
S4 getcfg 4	; RTaudio 
S5 getcfg 5	; -t 
S6 getcfg 6	; os system host 
S7 getcfg 7	; callback 

prints "------------------------------" 
prints "\nMax string len : " 
prints	S1 
prints "\nInput file name (-i) : " 
prints	S2 
prints "\nOutput file name (-o) : " 
prints	S3 
prints "\nRTaudio (-odac) : " 
prints	S4 
prints "\nBeat mode (-t)? : " 
prints	S5 
prints "\nHost Op. Sys. : " 
prints	S6 
prints "\nCallback ? : " 
prints	S7 
prints "\n" 
prints "------------------------------\n" 

endin 

</CsInstruments>
<CsScore>
 
i 1 0 0 
e 
</CsScore>
</CsoundSynthesizer>


The output should include lines like these:

------------------------------
Max string len : 255
Input file name (-i) : adc
Output file name (-o) : dac
RTaudio (-odac) : 1
Beat mode (-t)? : 0
Host Op. Sys. : Linux
Callback ? : 0
------------------------------
      

Credits

Author: Istvan Varga
2006

New in version 5.02